If you use group 7 for 'maintenance / repair' the system doesn't re-adjust itself even though you may have replaced half the components - I replaced the rotors, stripped the backplates and caliper carrier, repaired, repainted and re-instated.

The thickness doesn't reset however in measuring blocks unless you repeat the whole process using group 5 for 'pad change', simply open the EPB with group 5, close it again and then enter the adaptation for pad thickness, then run a test and hey presto the measuring block now shows the pad thickness from the adaptation.

And the pad thickness error is gone ....

Moral is that if you do plan to do repairs via group 7 so that you can turn everything off while you work you must follow its process to a conclusion and then follow it with a complete pad replacement process, assuming you replace the pads - but if you're in there why not replace them.